Thank you for viewing. This is a junction box from 【Lagoon Sound】. It is equipped with a tuner out and a volume function. The volume can be used as a master volume. The enclosure is a high-quality custom-made product from Hatake Precision Industries. I attached it to an effects board once, but never used it. The Velcro for fixing is included as is. It can be peeled off cleanly, so please remove it if you don't need it. I am also listing many other effects pedals, so please take a look if you'd like. Type...Electric Guitar